(a) An underage person who operates a motorboat on the waters of this state or a motor vehicle or is in actual physical control of a motor vehicle or motorboat in this state is deemed to have given consent, subject to § 5-65-203, to a chemical test of his or her breath, saliva, or urine for the purpose of determining the alcohol concentration or controlled substance content of his or her breath or blood if:

(1) The underage person is arrested for any offense arising out of an act alleged to have been committed while the underage person was driving or boating while under the influence or driving or boating while there was an alcohol concentration of two hundredths (0.02) but less than eight hundredths (0.08) in his or her breath, blood, saliva, or urine;

(2) The underage person is involved in an accident while operating or in actual physical control of a motorboat on the waters of this state or a motor vehicle; or

(3) The underage person is stopped by a law enforcement officer who has reasonable cause to believe that the underage person, while operating or in actual physical control of a motorboat on the waters of this state or a motor vehicle, is under the influence or has an alcohol concentration of two hundredths (0.02) but less than eight hundredths (0.08) in his or her breath or blood.

(b) An underage person who is dead, unconscious, or otherwise in a condition rendering him or her incapable of refusal is deemed not to have withdrawn the consent provided by subsection (a) of this section, and a chemical test may be administered subject to § 5-65-203.

(c) A test of a person's blood under this section to determine the person's alcohol concentration, controlled substance content, or other intoxicating substance content in his or her blood requires a warrant based on probable cause that the person was operating or in actual physical control of a motorboat on the waters of this state or a motor vehicle while intoxicated.